Adjustable sintering exhaust gas internal circulation gas collecting device

Abstract

The utility model relates to the field of steel metallurgy discloses an adjustable sintering waste gas internal circulation gas collecting device, including the box, the inner wall fixed connection of box has the fixed plate, the inner wall rotationally connected of box has the carousel, the inner wall of carousel is provided with the filter screen, the top of box is hinged with the dust cover, the top of box is provided with the clamping groove, the left side wall fixed connection of box has the air inlet pipe, the inner wall of box is provided with the draught fan, the inner wall of clamping groove is provided with the limit mechanism, the inner wall of box is provided with the open and close subassembly, the limit mechanism includes the fixed block. In the utility model, the separation and coincidence of the plug and the clamping groove slot, the separation of the moving long rod and the dust cover and the carousel slot, the carousel can be rotated to replace the filter screen quickly, avoid the tedious step of replacing the filter screen in shutdown, further improve the production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of iron and steel metallurgy, and in particular to an adjustable sintering waste gas internal circulation collection device. Background Technology

[0002] The adjustable sintering waste gas internal circulation collection device is a piece of equipment used in the sintering process of iron and steel metallurgy. It can collect the waste gas generated during sintering and realize the internal circulation of the waste gas in an adjustable manner, effectively reducing the emission of waste gas and pollutants. At the same time, it recovers the heat and some combustible gases in the waste gas, achieving the goals of energy conservation, emission reduction and improved resource utilization.

[0003] During the sintering process, the exhaust gas is collected by the gas collection hood and transported through pipelines to the adjustable gas collection device. After preliminary dust removal, the exhaust gas flow rate and circulation ratio are flexibly adjusted according to the sintering conditions using valves, fans and other equipment. Some of the exhaust gas is sent back to the head of the sintering machine, the ignition furnace and other areas to mix with the combustion air and participate in secondary combustion. This not only recovers the sensible heat of the exhaust gas and reduces fuel consumption, but also reduces the total amount of pollutants discharged, achieving energy saving, emission reduction and high-efficiency production in the sintering process.

[0004] The existing technology has the following drawbacks: In some existing equipment, when the filter screen is clogged when filtering exhaust gas, the staff needs to shut down the entire device to replace the filter screen. Moreover, the time required to loosen bolts and disassemble the filter screen for replacement is relatively long, which affects product production and cannot further improve production efficiency. Therefore, an adjustable sintering exhaust gas internal circulation gas collection device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an adjustable sintering waste gas internal circulation collection device, which aims to improve the problem that the existing technology cannot further improve production efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable sintering waste gas internal circulation collection device, comprising a box body, a fixed plate fixedly connected to the inner wall of the box body, a turntable rotatably connected to the inner wall of the box body, a filter screen provided on the inner wall of the turntable, a dust cover hinged to the top of the box body, a snap-fit ​​groove provided on the top of the box body, an air inlet pipe fixedly connected to the left side wall of the box body, an exhaust fan provided on the inner wall of the box body, a limit mechanism provided on the inner wall of the snap-fit ​​groove, and an opening and closing assembly provided on the inner wall of the box body;

[0007] The limiting mechanism includes a fixing block, which is slidably connected to the inner wall of the snap-fit ​​groove. An insert block is elastically connected to the inner wall of the left end of the fixing block via a movable spring, and a long rod is fixedly connected to the outer wall of the fixing block.

[0008] As a further description of the above technical solution:

[0009] The opening and closing assembly includes a baffle that is slidably connected to the inner wall of the housing. The inner wall of the baffle is provided with a threaded sleeve, and a threaded rod is threadedly connected to the inner wall of the threaded sleeve.

[0010] As a further description of the above technical solution:

[0011] The insert block is slidably connected to the inner wall of the fixed block.

[0012] As a further description of the above technical solution:

[0013] The fixing plate has a semi-circular groove, and the inner wall of the fixing plate is in contact with the outer wall of the turntable.

[0014] As a further description of the above technical solution:

[0015] The long rod is inserted into the inner wall of the dust cover.

[0016] As a further description of the above technical solution:

[0017] The insert block is snapped into the inner wall of the snap-fit ​​groove, and the long rod is inserted into the inner wall of the turntable.

[0018] As a further description of the above technical solution:

[0019] The fixing plate has a circular opening with the same shape as the filter screen.

[0020] As a further description of the above technical solution:

[0021] The smooth surface of the threaded rod is rotatably connected to the inner wall of the housing.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by utilizing the separation and overlap of the insert block and the slot, the moving rod separates from the dust cover and the turntable slot, and rotating the turntable allows for quick replacement of the filter screen, avoiding the tedious steps of stopping the machine to replace the filter screen, and further improving production efficiency.

[0024] 2. In this utility model, by setting a threaded rod and baffles, rotating the threaded rod causes the two sets of baffles to move closer or separate, which can quickly adjust the amount of air intake according to production needs, further improving work efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram showing the overall structure of the adjustable sintering waste gas internal circulation collection device proposed in this utility model.

[0026] Figure 2 This is a cross-sectional schematic diagram of the housing and fixing plate of an adjustable sintering waste gas internal circulation collection device proposed in this utility model.

[0027] Figure 3 This is a cross-sectional schematic diagram of the housing and dust cover of an adjustable sintering waste gas internal circulation collection device proposed in this utility model.

[0028] Figure 4 This is an exploded view of the fixing block, snap-fit ​​groove, and insert block of an adjustable sintering waste gas internal circulation collection device proposed in this utility model.

[0029] Figure 5 This is a schematic diagram showing the cross-section of the housing and the upper baffle of an adjustable sintering waste gas internal circulation collection device proposed in this utility model.

[0030] Legend:

[0031] 1. Housing; 2. Dust cover; 3. Turntable; 4. Filter screen; 5. Long rod; 6. Fixing block; 7. Insert block; 8. Movable spring; 9. Threaded rod; 10. Baffle; 11. Air inlet pipe; 12. Exhaust fan; 13. Fixing plate; 14. Snap-fit ​​groove. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1-3This utility model provides an embodiment of an adjustable sintering waste gas internal circulation collection device, comprising a housing 1, a fixing plate 13 fixedly connected to the inner wall of the housing 1, a turntable 3 rotatably connected to the inner wall of the housing 1, a slot corresponding to the turntable 3 on the housing 1 to facilitate the rotation of the turntable 3, a filter screen 4 provided on the inner wall of the turntable 3 to filter impurities in the waste gas, a dust cover 2 hinged to the top of the housing 1 to prevent dust from entering the filter screen 4, and to seal the opening on the housing 1 when the dust cover 2 is closed, a snap-fit ​​groove 14 provided at the top of the housing 1, and an air inlet pipe 11 fixedly connected to the left side wall of the housing 1, the air inlet pipe 11 being the waste gas inlet pipe, the housing 1... A corresponding air outlet is provided on the right side. An exhaust fan 12 is provided on the inner wall of the housing 1. The exhaust fan 12 drives the blades to rotate at high speed through an electric motor, realizing the circulation and exchange of gas in the housing 1. A limit mechanism is provided on the inner wall of the snap-fit ​​groove 14. An opening and closing assembly is provided on the inner wall of the housing 1. The limit mechanism includes a fixing block 6, which is slidably connected to the inner wall of the snap-fit ​​groove 14. The snap-fit ​​groove 14 has a slot corresponding to the fixing block 6, allowing the fixing block 6 to move back and forth. An insert block 7 is elastically connected to the inner wall of the left end of the fixing block 6 through a movable spring 8. When the insert block 7 moves to the left, the movable spring 8 is compressed. When resetting, the elastic force of the movable spring 8 is used to reset the insert block 7. A long rod 5 is fixedly connected to the outer wall of the fixing block 6.

[0034] Reference Figure 2 and Figure 5 The opening and closing assembly includes a baffle 10, which is slidably connected to the inner wall of the housing 1. The housing 1 has a slot corresponding to the baffle 10, allowing the baffle 10 to move back and forth. The inner wall of the baffle 10 is provided with a threaded sleeve, and a threaded rod 9 is threadedly connected through the inner wall of the threaded sleeve. The threaded rod 9 has two opposite threads, and the threaded sleeve has a thread that matches the threaded rod 9. By rotating the threaded rod 9, the two sets of baffles 10 can be brought closer together or separated. The smooth surface of the threaded rod 9 is rotatably connected to the inner wall of the housing 1. The housing 1 has a slot corresponding to the threaded rod 9 to facilitate the rotation of the threaded rod 9.

[0035] Reference Figures 2-4The insert 7 is slidably connected to the inner wall of the fixed block 6. The fixed block 6 has a slot corresponding to the insert 7, allowing the insert 7 to move left and right. The fixed plate 13 has a semi-circular slot. The inner wall of the fixed plate 13 contacts the outer wall of the turntable 3, so that the fixed plate 13 does not block the turntable 3. The long rod 5 is inserted into the inner wall of the dust cover 2. The insert 7 is snapped into the inner wall of the snap-fit ​​groove 14. The snap-fit ​​groove 14 has two sets of slots corresponding to the insert 7. The insert 7 is initially inserted into the first slot. The long rod 5 is inserted into the inner wall of the turntable 3. The turntable 3 and the dust cover 2 have slots corresponding to the long rod 5. The long rod 5 is initially inserted into the slots of the turntable 3 and the dust cover 2. The fixed plate 13 has a circular opening with the same shape as the filter screen 4.

[0036] Working principle: When the filter screen 4 needs to be replaced, manually move the insert block 7 to the left. When the insert block 7 separates from the first slot on the locking groove 14, move the insert block 7 and the fixing block 6 backward. When the fixing block 6, along with the long rod 5, separates from the slots on the dust cover 2 and the turntable 3, the insert block 7 will then align with the second slot on the locking groove 14. Release the insert block 7, and use the elasticity of the movable spring 8 to insert the insert block 7 into the second slot of the locking groove 14, thus limiting the long rod 5. Then, manually flip and open the dust cover 2, and manually rotate the turntable 3 to allow... The turntable 3, carrying the first set of filter screens 4, aligns with the circular opening on the fixed plate 13. Then, the staff can wash and replace the second set of filter screens 4. Finally, the staff can manually flip and close the dust cover 2, and manually press the insert block 7. When the insert block 7 separates from the slot on the snap-fit ​​groove 14, the staff can manually move the fixed block 6 and the insert block 7 forward, so that the fixed block 6, carrying the long rod 5, can be inserted into the slots of the dust cover 2 and the turntable 3, thus completing the limiting of the dust cover 2 and the turntable 3. If the filter screen 4 needs to be replaced again, simply repeat the above operation steps.

[0037] When it is necessary to increase the air intake, manually rotate the threaded rod 9 clockwise. The two sets of baffles 10 on the threaded rod 9 will separate from each other, reducing the obstruction of the air intake pipe 11 and thus increasing the air intake. When it is necessary to decrease the air intake, manually rotate the threaded rod 9 counterclockwise. The two sets of baffles 10 on the threaded rod 9 will move closer together, obstructing the air intake pipe 11 and thus decreasing the air intake.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable sintering waste gas internal circulation collection device, comprising a housing (1), characterized in that: The inner wall of the box (1) is fixedly connected to a fixing plate (13), the inner wall of the box (1) is rotatably connected to a turntable (3), the inner wall of the turntable (3) is provided with a filter screen (4), the top of the box (1) is hinged with a dust cover (2), the top of the box (1) is provided with a snap-fit ​​groove (14), the left side wall of the box (1) is fixedly connected to an air inlet pipe (11), the inner wall of the box (1) is provided with an exhaust fan (12), the inner wall of the snap-fit ​​groove (14) is provided with a limit mechanism, and the inner wall of the box (1) is provided with an opening and closing component. The limiting mechanism includes a fixing block (6), which is slidably connected to the inner wall of the snap-fit ​​groove (14). The left end of the inner wall of the fixing block (6) is elastically connected to an insert block (7) via a movable spring (8), and a long rod (5) is fixedly connected to the outer wall of the fixing block (6).

2. The adjustable sintering waste gas internal circulation collection device according to claim 1, characterized in that: The opening and closing assembly includes a baffle (10), which is slidably connected to the inner wall of the housing (1). The inner wall of the baffle (10) is provided with a threaded sleeve, and the inner wall of the threaded sleeve is threadedly connected to a threaded rod (9).

3. The adjustable sintering waste gas internal circulation collection device according to claim 1, characterized in that: The insert (7) is slidably connected to the inner wall of the fixed block (6).

4. The adjustable sintering waste gas internal circulation collection device according to claim 1, characterized in that: The fixing plate (13) has a semi-circular groove, and the inner wall of the fixing plate (13) is in contact with the outer wall of the turntable (3).

5. The adjustable sintering waste gas internal circulation collection device according to claim 1, characterized in that: The long rod (5) is inserted into the inner wall of the dust cover (2).

6. The adjustable sintering waste gas internal circulation collection device according to claim 1, characterized in that: The insert (7) is snapped into the inner wall of the snap-fit ​​groove (14), and the long rod (5) is inserted into the inner wall of the turntable (3).

7. The adjustable sintering waste gas internal circulation collection device according to claim 1, characterized in that: The fixing plate (13) has a circular opening with the same shape as the filter screen (4).

8. The adjustable sintering waste gas internal circulation collection device according to claim 2, characterized in that: The smooth surface of the threaded rod (9) is rotatably connected to the inner wall of the housing (1).

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